many studies on the movement of the Adriatic plate based on different
approaches. The Apulian carbonate platform is part of Adria and lies in the
foreland of the modern Apennines. Previous paleomagnetic studies in Apulia
reached mutually exclusive conclusions: Adria underwent Neogene clockwise,
counter-clockwise, or no rotation relative to Africa.
With the aim
of obtaining Cretaceous to Neogene paleomagnetic directions for Apulia, a
paleomagnetic study was carried out on the Apulian carbonate platform. Despite
the weak remanences of these rocks, we obtained useful paleomagnetic directions
of six localities from the Murge and Salento areas.
of our study are combined with published paleomagnetic directions from Adria,
which we have recalculated.
The combined data set is then compared to the
apparent polar wander path of Africa. We conclude that although most data
points are within error, they show on average a systematic trend of
counter-clockwise rotation with respect to Africa. Therefore, the data permit a
counter-clockwise rotation of Adria of 9.5°±9 with respect to Africa, as is
suggested in several models. To accommodate this rotation there should exist a
zone of decoupling south of Adria. It is possible that extension on the Sirte
or Ionian basins contributed to the accommodation of the rotation of Adri
Fieldwork in Apulia
(for more photo's see this link)
Publications of Marily Mensink
- Meijers, M.J.M., Smith, B., Kirscher, U.,
Mensink, M., Sosson, M., Rolland, Y., Grigoryan, A., Sahakyan, L.,
Avagyan, A., Langereis, C.G., Müller, C., A paleolatitude
reconstruction of the South Armenian Block since the late Cretaceous:
constraints on the Tethyan realm, Tectonophysics, 644-645, 197-219.
- Van Hinsbergen, D.J.J.,
Mensink, M., Langereis, C.G., Maffione, M., Spallutio, L., Tropeano, M.
and Sabato, L. (2014). Did Adria rotate relative to Africa ? Solid Earth, 5, 611-629.